Old Bangkok Sign Language
Old Bangkok Sign Language是一种手语，主要分布在泰国。按 Glottolog 的评估，它的濒危程度为“濒临灭绝”。
手语是完整的自然语言，有自己的语法；它们与当地口语并不同源。
Bangkok Sign Language (also known as Old or Original Bangkok Sign Language; Thai: ภาษามือกรุงเทพเก่า, romanized: P̣hās̄ʹā mụ̄x krungtheph kèā) is a deaf-community sign language of Thailand that arose among deaf people who migrated to Bangkok for work or family.
The language is moribund, with all speakers born before 1960. Younger generations have switched to Thai Sign Language, which seems to have arisen as a mixture of Old Bangkok SL and American Sign Language.
摘自英文维基百科 · Old Bangkok Sign Language · CC BY-SA 4.0